Transparent binder for loose leaves and the like



Jan. 9, 1951i 2,537,135

TRANSPARENT BINDER FOR LOOSE-LEAVES AND THE LIKE w. HEMPEL Filed Nov.18. '1949 All /l /l/ /l//l//l l/l//l/l/l/l/ l/ /l l1 JNVENTOR:

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M u Mw Patented Jan. 9, 1951 TRANSPARENT BINDER FOR LOOSE LEAVES AND THELIKE- William Hempel, Fair Lawn, N. J.

Application November 18, 1949, Serial No. 128,051

7 Claims. i

the securing means and construction of the back for the book, looseleaves and the like, will be concealed thereby providing my device witha desired feature at the same time making it of aesthetic appeal.

Still another object of my invention is to provide a device of this typewhich will have an opadue rear or bottom sheet, flexible at least at itsinner margin, the back of the binder being formed from said flexibleportion of the rear including a novel, simple, efcient means to securesaid transparent top thereto and providing said concealing means for theinner construction of the device and its securing means.

Further objects of this invention will be apparent as the specificationof the same proceeds or willbe pointed out therein.

In the drawings forming a part of this specification and accompanyingthe same:

Fig. 1 is a plan View of a preferred embodiment of my invention, and

Fig. 2 is a sectional view thereof7 on a larger scale, the section beingtaken on the line 2 2 of Figl 1; f

Fig. 3 is a sectional fragmentary and diagrammatic view of amodification, and

Fig. 4 is a similar view of another modification.

Referring now to the drawings more in detail by characters of reference,the numeral Il)V ini dicates the preferred embodiment of my invention,in general, being a cover or binder for loose leaf books or othersimilar articles.

It is composed of two main elements, an opaque, preferably flexible,rear member or cover sheet II, and a front or top transparent cover orsheet I2.

In the preferred embodiment shown in Figs. l and 2 the rear sheet II iscontinued at its inner end in several folds, generally indicated by thenumeral I3, which jointly with appropriate portions of the transparentYtop I2 and other parts and connecting devices will form the back of thebinder or book cover Ill.

The preferred arrangement of the folds I3 in the back of the device willbe formed by first an upwardly turned portion or fold I4, then adownward one I5, the two having the bend I6 between them. The materialof the rear sheet II then is continued in an upward bend II and anupward innermost fold I8 whereupon the same is turned horizontallyforming a top flange I9. The top sheet I2 of my device preferably willbe made of flexible but resilient transparent material, like anappropriate plastic, many of which are well known in this art.

The inner marginal end thereof will be turned downwardly into a fold 20which will be inserted between the two inner fold members I5 and I3 ofthe rear sheet II, after which all the mentioned folds and thedownwardly turned marginal inner end 20 of the top sheet will be securedtogether by any appropriate means.

It will be seen that in this simple manner I will provide a cover orbinder for books and the like which will have a transparent topwherethrough the top page of the book, or loose leaves, or the like,inserted into my novel binder and cover will be shown, may be observed,or read to great advantage and convenience, at` the same time beingnovel and attractive.

However, all the mechanism and possibly securing means at the back I3 ofthe book, or other article within my binder or cover, will be concealedby the opaque forward top ange I9 of the rear sheet;

In the preferred embodimentof Figs. l and 2, I show my binder or coveras employed for loose leaves and I indicate at 2| the loose leaf pagesthreaded on a ring 22, which, as usual in such .1.

devices, may be open and further pages threaded on it or removedtherefrom as is well known in this art.

The various parts of the back I3 may be secured together as has beenmentioned by any appropriate means, in the embodiment shown rivets 23being indicated for this purpose which also may be used to secure theloose leaf rings and their usual base 24 on the back I3 of the binder orcover.

In Fig. 3 I sho-w a modification of my device in which the rear coverhere also indicated by the numeral I I will simply have an upward bend26 at its inner end 25 continued in a forward covering flange 2'Isimilarly arranged and for the same purpose as the opaque flange I9 wasindicated in the preferred embodiment of Figs. 1

and 2.

The transparent top I2 here also will have a downward rear margin 20simply folded rdiattened on the upward bend or fold 26 in the opaquerear cover, and a specifically prepared back 28 will be secured over theparts 26 and 28 by any appropriate means, as it is well known in thebookbinding art, the back 28 preferably being in the form of a curvedsolid rigid strip or'bar as usual.

In Fig. 4 another modification of my device is indicated wherein theopaque rear cover II yis continued in similar bends or folds I4, I5 andI8 as has been described in the preferred modification of Fig. 1 and isterminated by the concealing upper flange I9. The transparentl top I2again will have a similar downward bend or fold and the mentioned bendsor folds of the rear cover, and the downward ange 28 of the transparenttop, will be secured together by any appropriate means, and in thismanner a simple but stiff back will be formed for my cover or binder fora book, or any other appropriate object, wherein the inner margin of thebook or vother article with its possible securing means will beconcealed while the top of the cover or binder .will be transparent.

One element in said securing means may consist ina row of stitches 29between the upper ends of the two inner folds l5 and I8 of the opaquerear sheet I'I passing through the upper end of the downward flange 20of the transparent top i2 and in this manner securing the parts togetherwith means which will be invisible to the outside, the ,outermost eld I4of the rear cover being then vsecured thereon by any appropriate meansif `desired..

A It is to be 'understood that such concealed securing stitches may beemployed at the top of the back of other modifications of my invention,as they are indicated at 29 .in Fig. 2.

Also, if desired, my device may be made without the concealing flange orflap I9, the top of the same then having a clear attractive transparentappearance, particularly if the inner mechanism observable therethroughis attractive,

'like gold plated rings and the like.

What I claim as new and want to protect by Letters Patent of the UnitedStates, is: 1. A binder or cover for books, magazines, loose leaf sheetsand the like, comprising, incombination, a rear sheet having a flexibleinner marginal portion, upwardly standing folds formed from said innermargin thereof, offering an upward opening therebetween, a final lateralnarrow ange at the upper end of the innermost fold, a top sheet for thedevice, the inner marginal portion thereof being folded downwardly andinserted into said upward opening in the folds of the rear sheet, andmeans to secure together the vertical folds thus formed of the rear andthe top thereby forming the back of the device.

2. In a device, as set forth in claim 1, said top being of transparentmaterial, said inner marginal portion and the final flange of said rearsheet being of opaque material.

3. In a device, as set forth in claim 1, said inner marginal portion andthe nal ange of said rear sheet being of opaque material, said top beingof stiff but resilient flexible and transparent material.

4. In a device, as set forth in claim 1, a horizontal row of stitchesprovided between the tops of the inner vertical folds of the folds inthe back and the top of the downward ange of the upper sheet foldedtherebetween.

5. A binder or cover for books, magazines, loose leaf sheets and thelike, comprising, in com,- bination, a rear sheet having a flexibleinner marginal portion, upwardly standing folds formed from said innermargin thereof, offering an upward opening therebetween, a top sheet forthe device, the inner marginal portion thereof being folded downwardlyand inserted into said upward opening in the folds of the rear sheet,and means to secure together the vertical folds thus formed of the rearand the top thereby forming the back of the device.

6. In a device, as set forth in claim 5, said top being of transparentmaterial.

7. In a device, as set forth in claim 5, said top being of transparentmaterial, said inner marginal portion and the folds of said rear sheetbeing of opaque material.

WILLIAM HEMPEL.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 381,846 Nordenfold Apr. 24, 1888660,304 McGraw Oct. 23, 1900 1,869,790 Wolf Aug. 2, 1932

